On 2022-07-21 02:07, William Zhang wrote:I do see many dts named in the format you described here and I agree it is very clear. But at Broadcom we use a slight different format for reference boards that we started from day 1: bcm9<soc>-<ref board model>.dts such as bcm963138REF.dts. And there are many in the kernel as well if you search "bcm9*.dts". Many of them are Broadcom reference boards and some are actual consumer product.
Add generic bcm94908.dts file.
Signed-off-by: William Zhang <william.zhang@xxxxxxxxxxxx>
---
arch/arm64/boot/dts/broadcom/bcmbca/Makefile | 1 +
.../boot/dts/broadcom/bcmbca/bcm94908.dts | 30 +++++++++++++++++++
2 files changed, 31 insertions(+)
create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/bcm94908.dts
diff --git a/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
b/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
index d30fa75f0611..27741b71ba9e 100644
--- a/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
+++ b/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
@@ -4,6 +4,7 @@ dtb-$(CONFIG_ARCH_BCMBCA) += \
bcm4906-tplink-archer-c2300-v1.dtb \
bcm4908-asus-gt-ac5300.dtb \
bcm4908-netgear-raxe500.dtb \
+ bcm94908.dtb \
bcm4912-asus-gt-ax6000.dtb \
bcm94912.dtb \
bcm963158.dtb \
AFAIU bcm94908 is a reference board name. I think I see some
inconsistency in naming Broadcom's reference boards DTS files.
If you take a look at in-kernel DTS files:
find ./arch/arm*/boot/dts/ -name "*.dts"
99% of them are prefixed with family/SoC name. I did the same for
bcm4908 (and Northstar) boards. So it's
<soc>-<manufacturer>-<model>.dts
e.g.
bcm4908-asus-gt-ac5300.dts
To match that I *think* you should actually call your file:
bcm4908-bcm94908 (or bcm4908-94908 depending on actual board name)
First of all: am I correct here?
Secondly: could you do that? I know many DTS files named ignoring SoC/I actually was thinking to ask you if we can change all the 4908 boards to use bcm94908- prefix to be consistent with Broadcom board name convention. But at the second thought, I didn't ask because it does not make much benefit other than a uniform name, unless you agree and I can make that change. Otherwise, I would rather keep them as they are now because we have ton of reference boards here and we don't want to make that changes to remove the 9 (which will definitive cause big confusing internally) and there are no rule in linux for the name as far as I know. What I can do is update the bcmbca.yaml to put bcmbca board name rule bcm9<soc>-<ref board model>.dts for broadcom reference board and bcm<soc>-<manufacturer>-<model>.dts for customer board, if that sounds good to you.
family prefix. Still maybe we could change it as some (this) point?
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